Sanitation collectors on Rennes Métropole

This layer schematically or topographically locates wastewater collectors, unit collectors and rainwater collectors.
Among the available attributes:
- Status: status (public/private/undetermined) of the collector concerned;
- Operation: condition of the collector (abandoned, planned, disconnected...);
- Material: material of the collector – this field insists on the “Friend cement” value as this strongly impacts the work on collectors and their maintenance;
- Sensitivity: this value concerns waste and unit water and refers to users connected upstream of the pipe and their sensitivity to a malfunction of the network. Structures such as hospitals, EHPADs or schools will have a high value (3 or 4) while the pavilions of individuals at the top of the network will have a low value (1 or 2);
- Refoulement: pressure-operated pipes;
- Note ITV: the result of television inspections of the different types of collectors;
- preci_horizontal: to make the difference, the value “Low” indicates that it is a schematic accuracy, the value “Topographic” indicates that it is a topographical accuracy.